Hi all,
I use MSP4330F2132 (SPI slave mode) to communicate with Farsens(a type of RFID tag IC, SPI master mode).
The clock signal is 16 (or 24, 32 and more, but can't 8) times continuously .
You know that TX buffer in MSP430 is 8 Bits, so , when clock is coming, the first 8 bits sent to master is ok.
During this moment, the Tx shift register is empty so that circuit need time to load new data from Tx buffer.
But, the clock signal is continuous, so that when Tx shift register is ready to send data, the clock signal maybe lose some.
Could you please give me some help about that ? Anyhow I wish all of you have a nice day :)